Pioneer Technical Services, Inc. offers a variety of professional geotechnical testing services and construction materials testing services to public, commercial, and residential construction industries. Working from a high standard of quality control we provide clients with accurate results needed for design and specification. We offer the following professional services to test construction materials:

Field Inspection – Construction Materials Testing – Geotechnical Testing (below)

We offer the following geotechnical laboratory services (laboratory locations and contact information):

Soil Strength Testing

  • Unconfined Compressive Strength of  Cohesive Soil – ASTM D2166/AASHTO T208
  • Direct Shear Test of Soils Under Consolidated Drained Conditions – ASTM D3080
  • Unconsolidated Undrained Triaxial Compression Test on Cohesive Soils – ASTM D4767
  • Consolidated Undrained Triaxial Compression Test for Cohesive Soils – ASTM D4767
  • Consolidated Drained Triaxial Compression Test for Cohesive Soils – ASTM D4767

Soil Permeability Testing

  • Hydraulic Conductivity of Saturated Porous Materials using a Flexible Wall Permeameter, Falling Head Methods – ASTM D5084
  • Permeability of Granular Soils (Constant Head) – ASTM D2434
  • Hydraulic Conductivity of Porous Material using a Rigid-Wall, Compaction-Mold Permeameter – ASTM D5856

Soil Consolidation Testing

  • One-Dimensional Consolidation of Soils – ASTM D2435
  • One-Dimensional Swell or Settlement Potential of Cohesive Soils – ASTM D4546

General Soil Testing

  • Particle-Size Distribution (Gradation) of Soils using Sieve Analysis – ASTM D6913
  • Particle-Size Analysis of Soils (Hydrometer) – ASTM D422/AASHTO T88
  • Atterberg Limits – ASTM D4318/AASHTO T88, T89
  • Organic Content by Loss-on-Ignition – ASTM D2947/AASHTO T257
  • Moisture Content and Unit Weight from Liner – ASTM D2216, D2937
  • Moisture Content – ASTM D2216/AASHTO T265
  • Dispersive Characteristics of Clay Soil by Double Hydrometer – ASTM D4221
  • Identification of Dispersion Soils by the Pinhole Test – ASTM D4647
  • Standard Proctor – ASTM D698, D558
  • Modified Proctor – ASTM D1557, D558
  • California Bearing Ratio (CBR) of Laboratory Compacted Soils – ASTM D1883/AASHTO T193
  • Harvard Miniature Compaction – NEV T101F
  • Specific Gravity and Absorption – ASTM D854/AASHTO T100
  • Total Porosity – API RP40
  • Soil Corrosivity Testing – MT232

Certifications and Laboratory Accreditations – NICET, ACI, AASHTO, ASTM, and WAQTC.

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